[HTML][HTML] Progresses in synthetic technology development for the production of l-lactide

X Meng, L Yu, Y Cao, X Zhang, Y Zhang - Organic & Biomolecular …, 2021 - pubs.rsc.org
L-Lactide is an intermediate for the industrial production of polylactic acid (PLA). The
chemical and optical purities of lactide determine the quality of the prepared PLA. It is of …

Polyaniline-supported zinc oxide nanocomposite-catalyzed condensation of lactic acid to lactide with high yield and optical purity

X Meng, Y Zhang, H Zhou, L Yu - ACS Sustainable Chemistry & …, 2022 - ACS Publications
In this work, we designed polyaniline-supported zinc oxide nanocomposites, which were
easily prepared catalysts and could catalyze the condensation reaction of l-lactic acid to …

A Brønsted acidic ionic liquid as an efficient and selective catalyst system for bioderived high molecular weight poly (ethylene 2, 5‐furandicarboxylate)

X Qu, M Jiang, B Wang, J Deng, R Wang… - …, 2019 - Wiley Online Library
Green synthesis of bioderived high‐molecular‐weight poly (ethylene 2, 5‐
furandicarboxylate)(PEF) over metal‐free catalysts is a significant challenge. This study …

Controlled Synthesis of l-Lactide Using Sn-Beta Zeolite Catalysts in a One-Step Route

Y Xu, Y Fang, J Cao, P Sun, C Min, Y Qi… - Industrial & …, 2021 - ACS Publications
Polylactic acid (PLA), as a biodegradable and renewable polymer, has been widely used in
biomedical and commercial applications. The energy-efficient synthesis of lactide from lactic …

[HTML][HTML] DBU-catalyzed biobased poly (ethylene 2, 5-furandicarboxylate) polyester with rapid melt crystallization: synthesis, crystallization kinetics and melting …

J Wu, H Xie, L Wu, BG Li, P Dubois - RSC advances, 2016 - pubs.rsc.org
Poly (ethylene 2, 5-furandicarboxylate)(PEF) is in the spotlight as a new emerging biobased
polyester. Usually, PEF exhibits very slow and weak melt crystallization behavior. In this …

Green synthesis of enantiomerically pure L-lactide and D-lactide using biogenic creatinine catalyst

W Huang, Y Qi, N Cheng, X Zong, T Zhang… - … degradation and stability, 2014 - Elsevier
Enantiomerically pure lactides of l-lactide (LLA) and d-lactide (DLA) were synthesized with
high yield (68.5–69.5%) via depolymerization of oligo-poly-l-lactic acid (O-PLLA) and oligo …

Influence of decomposition temperature of aromatic sulfonic acid catalysts on the molecular weight and thermal stability of poly (L-lactic acid) prepared by melt/solid …

M Takenaka, Y Kimura, H Ohara - Polymer, 2018 - Elsevier
Melt/solid polycondensation (MP/SSP) of poly (l-lactic acid)(PLLA) was conducted by using
several aromatic sulfonic acids as the catalysts. It was clarified that the increase in molecular …

Study on zinc oxide‐creatinine hybrid catalyst for efficient lactide synthesis with low racemization

G Tian, H Wang, Y Song, J Xiang, Y Ying… - Journal of Applied …, 2023 - Wiley Online Library
Lactide is the crucial intermediate for polylactic acid (PLA) synthesis via ring‐open
polymerization, but it suffers low yield and low purity induced by racemization reaction. In …

Design, synthesis, and characterization of a potential flame retardant poly (lactic acid‐co‐pyrimidine‐2, 4, 5, 6‐tetramine) via direct melt polycondensation

JF Xiong, QF Wang, P Peng, J Shi… - Journal of Applied …, 2014 - Wiley Online Library
Directly starting from d, l‐lactic acid (LA) and pyrimidine‐2, 4, 5, 6‐tetramine (PTA), the
copolymer P (LA‐co‐PTA) as a novel potential solid compatible polymeric flame retardant is …

Synthesis of high molecular weight poly (L-lactic acid) and poly (D-lactic acid) with improved thermal stability via melt/solid polycondensation catalyzed by biogenic …

W Huang, N Cheng, Y Qi, T Zhang, W Jiang, H Li… - Polymer, 2014 - Elsevier
Stereoregular high polymers of poly (l-lactic acid)(PLLA)(M w 1.2× 10 5, isotacticity 96.0%)
and poly (d-lactic acid)(PDLA)(M w 1.0× 10 5, isotacticity 98.6%) were successfully …